我喜欢在鸡尾酒里加几滴苦精来增添风味。

I like to add a few drops of ___bitters to my cocktail for extra flavor.

胜利的喜悦中夹杂着些许苦涩，因为他知道这是最后一次比赛了。

The joy of victory was mixed with ___bitterness as he knew it was his last game.